Made from metal. Plate switches manufactured to BS EN 60669-1, fan isolator to IEC 60669-2-4. Terminal capacity 4 x 1.0mm, 4 x 1.5mm, 2 x 2.5mm and 1 x 4.0mm. Captive terminal screws. Minimum mounting box depth: 1 and 2 gang 16mm, 3 and 4 gang 25mm. Lightly lacquered surface. Ref: UTST1146